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Woodward 9907-553

  • Product Name:​ GS16 Gas Fuel Metering Valve (model 9907-553)
  • Product Introduction:​ The GS16 is an electrically actuated gas fuel metering valve with an onboard electronic positioner controller. It is designed for industrial and aeroderivative gas turbines with power ratings between 10 and 50 MW.
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Detailed content

  • Technical Specifications:​
    • Valve Type: Self-cleaning, shear-type metering gas valve, 1.5″ control port
    • Maximum Gas Supply Pressure: 750 psi (5,170 kPa)
    • Fuel Temperature Range: –40 to +93°C (–40 to +200°F)
    • Ambient Temperature Range: –40 to +93°C (–40 to +200°F)
    • Drive: Onboard electric driver with single resolver (AN/DN/CO = Analog/DeviceNet/CANopen communication)
    • Control Signal: 4–20 mA analog, DeviceNet, or CANopen
    • Position Feedback: 4–20 mA, DeviceNet, or CANopen
    • Power Supply: 18–32 VDC
    • Electrical Interface: Dual conduit entries
  • Functional Features:​ Self-cleaning shear-type action prevents deposit buildup on the metering port; high-torque electric actuator; onboard electronics for closed-loop position control; single moving part (rotor with metering element and position feedback resolver on a single solid shaft).
  • Working Principle:​ The onboard electronic controller receives a position command (analog or network), drives the electric actuator to rotate the shear-type metering element, and maintains precise gas flow via resolver-based position feedback.
  • Application Scenarios:​ Gas fuel metering for industrial gas turbine generators (10–50 MW), compressor drives, and mechanical drive applications; suitable for base turbines and Dry Low Emission (DLE) multi-valve configurations.
  • Structural Characteristics:​ Aluminum alloy body; stainless steel internal gas-contact parts; NACE MR0175 compliant; 2-inch ANSI RF flange gas connection; integrated onboard driver electronics.
  • Installation Requirements:​ Mount directly to turbine gas manifold; connect 18–32 VDC power; wire analog or network control signals; install gas filtration per Woodward recommendation (25 µm absolute for metering ports).
  • Usage Notes:​ Do not exceed 750 psi supply pressure; maintain fuel temperature within –40 to +93°C; the self-cleaning action handles contaminant-laden fuels; verify communication protocol (Analog/DeviceNet/CANopen) matches the control system.

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